Electrical Power System (EPS) 2000
C3S LLC
The EPS 2000 is a complete power supply solution for CubeSats and Small Satellites, featuring single point failure tolerance, redundant CAN bus communication, and high efficiency GaN transistors.
Typed specifications82 values
Discloses 11 of 14 fields engineers filter by in this category (category median 7).
- Mass
- 6 500 g 560 W, 345 Wh, 15x 28 V output channels · datasheet p.3
- Total output power
- 2 000 W Peak output power · datasheet p.3
- Conversion efficiency
- 98 % datasheet p.3 92 % MPPT_LP module, Si technology | 98 % peak efficiency, solar
- Envelope (L×W×H)
- 210 x 255 x 115 mm (560 W, 345 Wh, 15x 28 V output channels) datasheet p.3 210 x 255 x 115 mm 560 W, 345 Wh, 15x 28 V output channels
- Outputs (as printed)
- 23.1 - 33.6 V (28 V unregulated) datasheet p.3 5 V | 12 V
- Supply voltage
- 6 V min · Input · datasheet p.3 70 V max · Input | 6–70 V Solar cell input
- Power consumption
- 2 W product page
- Data interface
- CAN PDU_MAIN redundant platform communication interfaces · datasheet p.2 CAN Primary interface | CAN primary interface: redundant CAN with CAN-TS | UART Secondary interface
- Operating temperature
- -40 °C min · Qualification · datasheet p.3 60 °C max · Qualification | -40–60 °C qualification temperature
- Radiation tolerance (TID)
- 30 krad datasheet p.3 30 krad TID, 60Co
- TRL
- 4 currently in TR4, will reach TRL7 by Q3 2025 · datasheet p.1
- Unit type
- integrated EPS with battery configurable, built-in battery pack · datasheet p.1
- Bus and outputs type
- hybrid (regulated rails + battery bus) 28 V unregulated main distribution lines plus 5/12 V auxiliar… · datasheet p.1
- Unregulated (battery) bus voltage
- 28 V unregulated main power distribution lines · datasheet p.1 23.1–33.6 V Main power distribution line voltage (28 V unregulated) | 23.1–33.6 V main power distribution line, 28 V unregulated
- Regulated output voltages
- 5 V auxiliary output lines · datasheet p.1 5 V Auxiliary power distribution line voltage | 5 V PDU_MAIN regulated output lines | 12 V auxiliary output lines | 12 V Auxiliary power distribution line voltage +1
- Switchable outputs
- 4 12 V LCL channels · datasheet p.3 200 28 V LCL channels | 6 5 V LCL channels | 200 Class 3 LCL output | 15 PDU_EXT module, 28 V unregulated +1
- Solar array inputs
- 4 MPPT_HP module · datasheet p.2 5 MPPT_LP module | 20 total number of MPPT channels | 20
- Solar input voltage window
- 6–70 V input voltage range · datasheet p.3 35–70 V MPPT_HP module | 6–25 V MPPT_LP module | 6–70 V
- Max solar input power
- 115 W high-power MPPT peak input power, per channel · datasheet p.3 12 W low-power MPPT peak input power, per channel | 460 W MPPT_HP module | 460 W MPPT_HP, per module (4 channels) | 100 W MPPT_LP module +2
- Solar array regulation
- MPPT datasheet p.3
- Integrated battery energy
- 2 000 Wh datasheet p.1 115 Wh per BAT module | 345 Wh min · battery pack stored energy, from | 2 000 Wh max · battery pack stored energy, up to
- Protections
- Retriggering LCLs datasheet p.2 over-current (LCL) Class 3 LCL output channels, retriggering LCLs
- Satellite class
- CubeSat CubeSat and SmallSat power supply solution · datasheet p.1 SmallSat
- Max current per output
- 2 A 12 V LCL channels, all 4 · datasheet p.3 2 A 12 V LCL, 4 channels | 3 A 28 V LCL Class 3 channel, can be paralleled | 0.56 A 5 V LCL channels, 2x | 1.1 A 5 V LCL channels, 4x +6
- Peak output power
- 2 000 W peak output power, if a sufficient number of batteries and/or… · datasheet p.3
- MPPT
- yes datasheet p.3
- Integrated battery cell configuration
- 7 or 8 series 21700 cells per module, up to 16 parallel modules datasheet p.3
- Battery heater control
- yes integrated battery heater · datasheet p.3
- Housekeeping telemetry
- Independent telemetry, balancing, thermal management and protection per battery module datasheet p.2
- Redundancy
- cold redundant modules inside the EPS are cold-redundant, graceful degradation · datasheet p.1
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier7 lines, in the manufacturer's own wording
- Current development stage
- TRL4, aiming for TRL7 by Q2 2026.
- Input voltage range
- 6 to 70 V
- Output voltage
- 5 V, 12 V, Unregulated 28 V
- Peak output power
- 2 kW
- Battery capacity
- Up to 2 kWh
- Lcl output channels
- Up to 200 independently controllable
- Qualification temperature
- -40°C to 60°C
About
The Electrical Power System (EPS) 2000 is a comprehensive power supply solution specifically designed for CubeSats and Small Satellites. It boasts a single point failure tolerant design and incorporates redundant CAN bus for telemetry and telecommand communication. The system is equipped with Gallium Nitride (GaN) transistors, which contribute to high efficiency and low heat dissipation. It offers up to 20 independent Maximum Power Point Tracking (MPPT) channels and supports an input voltage range of 6 to 70 V. Output voltages include 5V, 12V, and an unregulated 28V, with a peak output power of 2 kW. The EPS 2000 can accommodate up to 2 kWh of battery capacity and provides up to 200 independently controllable LCL output channels. It is qualified for operation within a temperature range of -40°C to 60°C. The current development stage is TRL4, with an aim to reach TRL7 by Q2 2026.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.